[gtk+] Add minimal popover theming to Raleigh

[Matthias Clasen <matthiasc src gnome org>]

commit f13b3e3aeb5dae2da0a2c62599d8d5f24bfd4e46
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Feb 4 23:10:22 2014 -0500

    Add minimal popover theming to Raleigh
    
    Add background and border, so the popover boundaries are visible.

 gtk/resources/theme/gtk-default.css |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/gtk/resources/theme/gtk-default.css b/gtk/resources/theme/gtk-default.css
index e13c4f1..9ab3cbd 100644
--- a/gtk/resources/theme/gtk-default.css
+++ b/gtk/resources/theme/gtk-default.css
@@ -32,6 +32,13 @@ GtkWindow, .button, .slider {
   background-color: @bg_color;
 }
 
+GtkPopover {
+  background-color: @bg_color;
+  border-color: darker(@bg_color);
+  border-width: 1px;
+  border-style: solid;
+}
+
 .expander, GtkTreeView.view.expander {
   color: #fff;
 }